The impact analysis based on gray correlation of sedimentary water in botton corrosion of oil tank

The theoretical basis of this paper is the gray relational analysis theory. By factor analysis method, we obtain five main factors: sulfide content, carbonate content, chlorine ion content, sulfate ion content and PH, which are proposed in [1]. Through calculating the correlation coefficient and gray relational degree, we get the corrosion effect evaluation of sedimentary water to the bottom of a tank. It's meaningful for tank design and corrosion protection.